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Electronic Devices Competitive Exam: Practice Test 21 (Chapter 8)

Semiconductor Basics Multiple Choice Questions (MCQs) PDF Download - 21

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Semiconductor Basics MCQs with Answers PDF Download: MCQ Quiz 21

MCQ: 101

In metals, conductivity takes place due to

  1. free electrons
  2. holes
  3. Valence electrons
  4. protons
MCQ: 102

Wide energy gap is present in

  1. insulators
  2. conductors
  3. semiconductors
  4. super conductors
MCQ: 103

All shells in an atom must be completely filled with electrons except

  1. conduction shell
  2. inner shell
  3. second shell
  4. Valence shell
MCQ: 104

Germanium has energy gap of order

  1. 0.7 eV
  2. 1.4 eV
  3. 0.3 eV
  4. 2.3 eV
MCQ: 105

Impurity atoms that contains five valence electrons are called

  1. pentavalent impurities
  2. bivalent impurities
  3. trivalent impurities
  4. divalent impurities

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Semiconductor Basics MCQ App (Android & iOS)

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